Valentine's Day is supposed to be all about showing your significant other how much you care, and in America we do that by spending lots of money on gifts. For every homemade card create or heart-shaped cookie baked, infinitely more men and women coughing up a different kind of dough on overpriced roses and greeting cards. According to a study by the National Retail Foundation, we are expected to spend a whopping $15.7 billion expressing our love on Valentine's Day.